Trusted Attic Cleaning & Rodent Proofing for Pomona Homeowners
Pomona Attic Cleaning & Rodent Proofing typically costs between $1,200 and $4,500 depending on contamination level, attic square footage, and whether structural repairs are needed. Most projects take one to three days, and same-day inspections are available throughout Pomona and surrounding San Gabriel Valley communities. Call (562) 242-7569 to schedule a free written estimate with documented photo record.
We’ve completed attic cleanouts and rodent exclusions in more than 9,000 homes since 2016, and Pomona’s combination of mature neighborhoods, oak and citrus canopy, and seasonal temperature swings creates conditions we see repeatedly. In the Lincoln Park area near Ganesha Hills, we regularly find roof rat activity tracing from utility lines into attic spaces through gaps around plumbing vents. North Pomona homes near the 10 freeway often show compressed insulation mixed with rodent debris that has gone unaddressed through multiple summers. Our crews are background-checked and uniformed, and a live person answers calls 24/7. Every job begins with a written price before any work starts and ends with a Documented Photo Record, under Haven Standard Clause 1.
What Our Attic Cleaning & Rodent Proofing Service Includes
Attic Cleanout
An attic cleanout removes all contaminated insulation, debris, rodent droppings, nesting material, and any stored items that have become unusable. You’ll need this when your attic has visible waste accumulation, compressed insulation that no longer performs, or odors that enter living spaces through recessed lighting and HVAC returns. In Pomona, we commonly find that homes built between 1950 and 1980 have original insulation mixed with decades of rodent activity, particularly in neighborhoods like Mayflower Village and the older sections of Phillips Ranch where mature trees provide continuous roof rat highways. Our crew vacuums all material using HEPA-filtered extraction, bags it for proper disposal per Los Angeles County waste regulations, and leaves the attic space empty and inspectable.

Attic Sanitizing & Decontamination
Attic sanitizing applies EPA-registered disinfectants and enzymatic treatments to surfaces after organic contamination has been removed, targeting the bacteria and allergens left behind by rodent urine and droppings. This step is essential because hantavirus, leptospirosis, and salmonella can persist in dried waste that becomes airborne during HVAC operation or future disturbance. We treat this as a distinct phase from cleanout, not a spray-and-go add-on. In Pomona’s climate, where summer attic temperatures exceed 140°F, biological material desiccates quickly and can become deeply embedded in wood framing. Our technicians apply a two-stage treatment: first a disinfectant contact spray on all surfaces, then a fogging application that penetrates irregular framing cavities where hand application won’t reach.

Rodent Proofing & Exclusion
Rodent proofing, also called exclusion, is the physical sealing of all entry points larger than one-quarter inch to prevent re-infestation after cleaning and decontamination are complete. This is the critical difference between a temporary fix and a permanent solution; without it, rodents return within weeks using scent trails established by previous populations. Our Pomona crews are trained to identify the full range of entry vectors: roof-to-wall intersections, gable vent screening, plumbing and electrical penetrations, chimney gaps, and garage attic hatches. We use galvanized steel mesh, concrete patching, and specialized exclusion hardware rather than spray foam or caulk, which rodents chew through. Every exclusion job includes a written map of sealed points with photos, so you know exactly what was addressed.

Attic Restoration
Attic restoration rebuilds the thermal and air barrier performance of your attic after contamination has been removed and entry points sealed. This typically involves installing new insulation to current California Title 24 standards, air sealing top plates and penetrations, and verifying performance with blower-door testing on applicable jobs. In Pomona, where Title 24 compliance is required for permitted work, we specify materials from Owens Corning, Johns Manville, Knauf, and GreenFiber based on the home’s construction type and your performance goals. Restoration is where our sealed-first-then-insulated approach matters most: we never install new insulation over an unsealed attic floor, because air leakage through top plates and can lights will degrade the new material’s performance and can carry odors from any remaining contamination into living spaces.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Attic Cleaning & Rodent Proofing

We work with insulation and air-sealing materials from the leading manufacturers in the building envelope industry. Our crews are trained in the installation specifications for CertainTeed fiberglass batts and blown-in systems, which we commonly specify for Pomona attic restorations where fire resistance and acoustic performance are priorities. We’ve also installed Icynene open-cell spray foam in numerous local attics, particularly in homes with complex roof geometries or conditioned attic conversions where air impermeability is critical. For homeowners seeking sustainable options, GreenFiber cellulose insulation is frequently our recommendation in Pomona’s older neighborhoods, where its higher density and recycled content align with both performance and environmental priorities.
Whether your attic currently contains CertainTeed, Icynene, GreenFiber, or any other insulation product, we can assess its condition, remove it if contaminated, and specify replacement materials matched to your home’s specific needs. We carry no exclusive brand relationships, so our recommendations are based on performance requirements rather than distribution incentives. Every material we specify is sourced through authorized distribution with full manufacturer warranty support.
Before
AfterSigns You Need Attic Cleaning & Rodent Proofing Right Now
- Visible droppings or urine stains in attic spaces or on insulation. Rodent droppings appear as dark pellets, typically concentrated along joists and near insulation edges where animals travel. In Pomona’s climate, these dry quickly and become brittle, creating inhalation hazards when disturbed by HVAC airflow or foot traffic during storage access.
- Unexplained odors that worsen when heating or cooling systems run. If your home develops a persistent ammonia or musky smell that intensifies with furnace or air conditioner operation, the likely source is rodent urine in attic insulation being drawn into ductwork or distributed through ceiling penetrations. This is particularly common in Pomona homes with flex duct runs through attic spaces.
- Scratching or scurrying sounds during evening hours. Roof rats are nocturnal, and their activity peaks between dusk and midnight. If you hear movement in ceilings or walls during these hours, especially in neighborhoods with mature oak or citrus canopy like those near Ganesha Park or along White Avenue, active infestation is likely.
- Insulation that appears compressed, tunneled, or displaced. Rodents nest in insulation and compress it while traveling, reducing its effective R-value by 30% or more in affected areas. In Pomona’s summer heat, this creates hot spots in ceilings and forces air conditioning systems to run longer cycles.
- Evidence of gnawing on wiring, ductwork, or structural wood. Rodent incisors grow continuously, requiring constant chewing. Electrical wire damage creates fire hazards that home inspectors flag immediately, and we’ve found compromised wiring in Pomona attics that had gone unobserved until odor or performance issues prompted investigation.
Our Attic Cleaning & Rodent Proofing Process - Step by Step

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Written estimate with attic inspection and photo documentation. We begin with a full attic inspection, documenting contamination extent, insulation condition, and all visible entry points with dated photographs. You receive a written price before any work starts, with line-item breakdown of cleanout, sanitizing, exclusion, and restoration phases. This is Haven Standard Clause 1: flat price, written scope, written warranty before anyone lifts a tool.
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HEPA-filtered removal of all contaminated material. Our crew sets up containment and negative air pressure where needed, then removes insulation, debris, and waste using vacuum systems with HEPA filtration. All material is bagged on-site and transported for disposal in compliance with Los Angeles County environmental health requirements.
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Two-stage sanitizing and decontamination. After removal, we apply disinfectant to all exposed surfaces, followed by enzymatic fogging that penetrates framing cavities. This addresses the bacterial and viral load that remains after visible waste is gone, particularly important in Pomona’s older homes where decades of accumulation may be present.
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Comprehensive rodent exclusion with mapped documentation. We seal every entry point one-quarter inch or larger using rodent-resistant materials: galvanized steel mesh, concrete repair, and specialized hardware. Each sealed point is photographed and mapped, and you receive this documentation as part of your project record.
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Restoration with air sealing, insulation replacement, and performance verification. We air seal all top plates, can lights, and penetrations before installing new insulation to specified depth and density. On applicable jobs, we perform before-and-after blower-door testing to verify air-sealing results, with readings provided in your final documentation package.
How Much Does Attic Cleaning & Rodent Proofing Cost in Pomona?
Attic Cleaning & Rodent Proofing pricing in Pomona runs $1,200-$2,800 for a typical cleanout and sanitizing of attics under 1,000 square feet with moderate contamination. Rodent proofing and exclusion adds $800-$2,200 depending on roof complexity and number of entry points. Full restoration with new insulation installation ranges from $2,500-$4,500 for standard fiberglass or cellulose, with spray foam applications at the higher end of that range or above for complex geometries.
Several factors move pricing within these ranges. Attic accessibility matters: homes with limited scuttle openings or steep roof pitches require additional labor for material handling. The degree of contamination affects both removal time and disposal costs; heavy rodent debris with saturated insulation takes longer to extract safely. Roof height and complexity determine exclusion difficulty; multi-level roofs with multiple vent types and intersecting planes require more time to seal comprehensively. And the existing insulation type influences removal cost, with vermiculite or asbestos-containing materials requiring specialized abatement procedures that we subcontract to licensed specialists.
To avoid overpaying, get competing estimates in writing and compare scope details, not just bottom-line numbers. We offer a Free Second Opinion on Any Written Estimate; bring us a competing quote and we’ll review it with you line by line. Our estimates include all phases with no hidden charges for disposal, sanitizing, or documentation. Call (562) 242-7569 for your written price.
Attic Cleaning & Rodent Proofing Near Pomona - Our Service Area

We complete attic cleaning and rodent proofing throughout Pomona and neighboring communities with typical response times of same-day to next-day for inspections. Our service area includes La Verne, San Dimas, Claremont, Charter Oak, Covina, Glendora, Citrus, West Covina, San Antonio Heights, Vincent, and Azusa. Many of these communities share Pomona’s mature tree canopy and similar housing stock from the 1950s through 1980s, so the contamination patterns and exclusion challenges we encounter are consistent across the region. Travel time from our Pomona base to outlying areas like San Antonio Heights or Vincent typically adds 15-25 minutes to arrival windows.
Serving Pomona, CA - Our Local Coverage Area
We’re based in the Pomona area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Attic Cleaning & Rodent Proofing in Pomona

Attic cleaning and rodent proofing is a comprehensive service that removes contaminated insulation and waste, sanitizes all surfaces, seals entry points to prevent re-infestation, and restores thermal performance with new insulation. It addresses both the immediate health hazards of rodent contamination and the underlying structural vulnerabilities that allowed infestation to occur. For Pomona homeowners, this service is particularly relevant given the region’s roof rat population and the number of homes with original insulation that has never been removed or assessed.
Most projects are completed in one to three business days, with cleanout and sanitizing typically done in day one, exclusion in day two, and restoration in day three if all phases are required. Smaller attics with limited contamination may be completed in a single day; larger or more severely compromised spaces can extend to four or five days. We provide a specific timeline in your written scope before work begins, and we do not start until you have that written commitment.
Complete projects in Pomona typically range from $1,200 for basic cleanout and sanitizing to $4,500 for full cleanout, exclusion, and restoration with premium materials. The most common full-service project falls between $2,800 and $3,800 for an average-sized home with moderate contamination and standard insulation replacement. Your exact price depends on attic size, contamination level, roof complexity, and insulation type selected. Call (562) 242-7569 for a written estimate with line-item breakdown, estimates are free.
Yes, we regularly work with all three brands and can assess, remove, and replace their products as part of attic restoration. Our crews are trained in the specific handling and installation requirements for CertainTeed fiberglass systems, Icynene open-cell spray foam, and GreenFiber cellulose insulation. We source replacement materials through authorized distribution so manufacturer warranties remain valid. If your attic contains a different product, we can work with that as well, we carry no brand exclusives.
We offer same-day inspection availability throughout Pomona and can typically begin active work within 24-48 hours of estimate approval. For situations involving active rodent entry into living spaces or significant odor events affecting habitability, we prioritize scheduling and can often dispatch a crew the following business day. A live person answers calls 24/7 to assess urgency and schedule appropriately, no voicemail loops or callback windows measured in business days.
All completed work is covered by our 365-Day Done Right Promise: if it’s not done right, we make it right. This applies to exclusion workmanship, insulation installation, and air-sealing performance. For rodent proofing specifically, we provide a written guarantee that if rodents re-enter through points we sealed within one year, we return at no charge to identify and seal the breach. Your warranty terms are delivered in writing before any work starts, under Haven Standard protocol.
Clear attic access paths of furniture or stored items, ensure pets are secured away from work areas, and notify us of any known electrical or structural hazards in advance. If you have stored items in the attic that you wish to keep, remove them before our arrival or specify in your written scope that item sorting is included. We do not need you to pre-clean or attempt any removal yourself; our crews are equipped and trained for hazardous material handling. After work completion, we recommend scheduling any planned HVAC service for after our restoration phase to avoid disturbing new insulation.
Schedule Your Attic Cleaning & Rodent Proofing Service in Pomona Today
Call (562) 242-7569 to speak with a live person 24/7 and schedule your free written estimate. We’ll inspect your attic, document conditions with photographs, and provide a flat price with written scope and warranty before any work begins. Under Haven Standard Clause 1, you always know what you’re paying for and what you’ll receive. Same-day inspections available throughout Pomona, our Attic Cleaning & Rodent Proofing in La Verne, San Dimas, and surrounding communities.
Written by Wes Okafor, Owner at Topside Attic Insulation Pomona, serving Pomona and the San Gabriel Valley since 2016.